Island



F. A. MORSE.

(No Model.)

LAMP.

Patentd Oct. 12

l OTA/Jaim FREDERIC A. MORSE, OF PAVTUOKET, RHODE ISLAND.

LAMP.

SPECIFICATION forming part of Letters Patent No. 591,417, dated October12, 18.97.

Y Application led September 18, 1896. Serial No. 606,220. (No model.)

To all whom t may concern;V

Be it known that I, FREDERIC A. MoRsE, a citizen of the United States,residing at Pawtucket, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Lamps; andI do declare the following to be a full, clear, and

exact description of the invention such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

My invention relates to improvements in central-draft lamps in which isused my improved automatic liquid-indicator for which Letters Patent ofthe United States were granted to me April 28, 1896, No. 559,061; andthe object of my invention is to provide a lamp in which a wick whichhas been partially unraveled at the lower end may be used without saidwick interfering with the action of my indicator.

My invention consists, essentially, of a partly-cylindrical shieldattached to the bottom of the lamp close to the central-draft tube, andwhich shield extends parallel with the tube upwardly into the body ofthe lamp and so adjusted as to leave an annular space between the shieldand the centraldraft tube of the lamp, so that the wick may be easilymoved up and down in said space.

My invention is set forth clearly in the accompanying drawings, inwhich- Figure 1 is a vertical section of the lamp,

showing my automatic liquid-indicator inV position, the wick and shieldbeing at the right of the indicator, as shown. Fig. 2 is a vertical viewof the wick. Fig. 3 is a perspective of the shield, and Fig. 4 across-section of the wick and shield through the line x at of Fig. l.

The same letters refer to the `same parts throughout the variousdrawings.

Where an ordinary wick is used, there is no need of my device, but manywick-makers ravel out the lower end of the wick ostensibly forthepurpose of increasing its capillary power. This Vraveled lower endmakes thereof.

a wide surface at the bottom of the wick, 5o

which would ordinarily interfere with the operation of my indicator bybecoming entangled with some of the movable parts In order to adapt -myindicator to the use of this wick, I have devised the shield which isthe subject of this invention. In Fig. 1, A is a central-draft lamp; D cd, my automatic indicator; B, the wick, and O e the shield. The wick Bis raveled at its lower edge, as seen at a in Figs. 1, 2, and 4. Figashows the shield in detail, flanged at the bottom-at b and flaringoutward at the top, as shown at e in Figs. 3 and 1, so as to y admit thewick easily into the space between the shield and the central tube ofthe lamp.

Fig. 4 is a section through :n of Fig. 1, showing the central tube, thewick, and the shield in section.

The shield is soldered or otherwise fixed to the bottom of the lamp anddoes not impair the capillarity of the wick or in any way impede itsmovement, but does effectually prevent the ravelings from catching inthe indicator.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is-

1. A center draft for lamps, combined with a short curved shield,provided at its lower edgewith a flange b, and which shield is securedto the bottom of the lamp close to the central-draft tube, and extendsparallel with the tube upwardly into the body of the lamp, substantiallyas shown.

2. In a center-draft lamp, a short curved shield which is secured to thebottom of the lam p-body and extends vertically therein parallel withthe center-draft tube, there being sufficient space between thedraft-tube and the shield to allow the lower edge of the wick to passdown between them, substantially as shown.

In testimony whereof I aflix my signature in presence of'two witnesses.

' FREDERIC A. MORSE.

Witnesses:

RosE E. DoERrNeroN, LELLAN J. TUCK.

